Federico Guillermo Enrique Alejandro de Humboldt, known as Alexander von Humboldt, was a German who left his mark on various aspects of modern science up to the present day. Next I will briefly explain his biography before arriving at the destination previously invaded by Spain: Mexico, which was called “New Spain” at the time. He has a fairly extensive education with private teachers, such as philosophy, physics, engraving, drawing, politics, physical and natural sciences, biology, modern history, mathematics, geography, geology and also several languages; it provides what we would currently call the beginning of modern science. Explore distant lands, unknown and strange to Europeans: the American continent, focusing on Mexico; In it he analyzes and studies nature in detail, creating maps, drawings, writings and collecting various things and then analyzing them. They traveled by mule or on foot, collected and studied plants, animals and rocks, carrying with them heavy and delicate measuring instruments, which were more than 25 and the most modern of their time, and they also spent their own fortune to purchase these instruments. made of metal and wood, including: telescope, microscope, sextant, quadrants, barometer, theodolite and hygrometer. In America, where he observes indigenous peoples with eyes full of culture, he becomes interested in humanity. New Spain was faced with several unjust social, political, and social conditions that the inhabitants lived in which Humboldt decided to oppose and make a change, as he had no prejudices. They accuse him because he could be a possible spy for the United States, given that he gives them some maps of the Mexican region, which he will then conquer... middle of paper...xexplores lands and talks about nature with the human being they brought him the fame that we currently recognize. He was a man without prejudice, who sought to ensure that all human beings were taken into account equally, without classification, especially the indigenous people who suffered various injustices because the Spaniards humiliated them socially. Even in New Spain he made several relevant investigations and discoveries about nature and history before the Spanish invasion since it was not the same place and he had to remove the rubble of some important figures such as the Coatlicue and the Aztec calendar. He worked in science for more than 70 years, putting his personal fortune to pay for his own travel, publications, and helping low-income youth with their education since he received no financial support from the government..